CN1322966C - Digital control device of flyash brick shaping equipment - Google Patents
Digital control device of flyash brick shaping equipment Download PDFInfo
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- CN1322966C CN1322966C CNB2004100215334A CN200410021533A CN1322966C CN 1322966 C CN1322966 C CN 1322966C CN B2004100215334 A CNB2004100215334 A CN B2004100215334A CN 200410021533 A CN200410021533 A CN 200410021533A CN 1322966 C CN1322966 C CN 1322966C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The present invention relates to a digital control device of fly-ash brick shaping equipment, which uses a CAD/CAM interactive self-adaptive control software to carry out automatic programming of mathematical model exchange to a programmable controller to form the digital control system. An operation platform of a microcomputer, the programmable controller, a structure of a main body of each controlled object, a sensor, a control system and a line thereof form a module unit; the operation of the current information state about to be executed is reflected by an interactive interface; a state column guides the operation and prompt the position of the current state; and the digital control system carries out connection and transfer with each module unit by electric signals and carried out offset adjustment to corresponding compensation control amount of each module unit. The present invention solves the problems of complex decoding process, unstable product quality and low work efficiency in the prior art, changes a control program through the operation outside the device, completes digitization decoding and realizes the digital control of program action of the equipment; and the present invention has the advantages of reduced management cost, improved work efficiency and control accuracy, assurance of the product quality and wide range of application.
Description
Technical field
The present invention relates to a kind of equipment digitalized control method, particularly a kind of flyash brick former numerical control method also can be used as the numerical control method of formers such as fly ash building block and fly ash silico-calcium board.
Background technology
At present, utilize the fly ash building materials for wall to substitute the conventional sintering solid clay brick, this is not only because many power consumptions of clay brick source, ruin the field serious the occupation of land, by strict limit production and use, but also increasing owing to steam power plant's flyash waste discharge amount, this is contaminated environment both, take a large amount of soils again, also become big public hazards.Therefore,, make full use of the performances such as lateral reactivity that flyash has, it as aboundresources and cheap raw material fully utilizes, is produced construction material, extensively promoted for eradicating the public hazards of flyash.
At present, import equipment, the concrete block moulding machine that the automatic controlling level of better performances is higher all is the mode that adopts manual programming in PLC (Programmable Logic Controller) machine.As make-up machine relevant procedures and action, in decoder input PLC program, perhaps the relevant procedures action is made into module.This mode has certain confidentiality, and disposable input ratio is easier to, but the user use the difficulty more, bother also many, very the inconvenience.An exercise not harmony is arranged or produce in interference volume just must stop production when big and handle, if any the replacing raw material variety, under the bigger situation of physical and chemical indexes variable, still use former program just not to guarantee control accuracy, product quality is instability also.Must stop production like this, seek with decoder going one by one, going one by one changes, and then one by one go debugging, the rectification process will be with a large amount of time, operating efficiency is very low.In addition, external concrete block moulding machine automatically control only limits to the operation of the parts of make-up machine own, and other auxiliary equipment is just utilized start that button carries out, shut down control, be have certain circumscribed.
Programming in the concrete segment machine of domestic production, the employing modular manner machine that has, what have then is that each machinery is linked to each other by computer controller, to realize the automatic management of forming process.According to Chinese patent literature, a kind of " from feeding in raw material, be molded into control automatically, the make-up machine of cycle operation continuously between each procedure such as removing from mould " disclosed among the ZL93211448.2 " hydraulic pressure full-automatic concrete one hand tile make-up machine ".The course of work that the so-called full-automatic only spacing movement between several operations can turn round continuously.The disclosed technology contents of ZL01270546.2 " fully-automatic building block forming machine ", the feed mechanism of this machine, shaping mechanism and building block transport portion link to each other with automatic control respectively; Automatically control section comprises computer able to programme and continuous circuit, assembly thereof.This fully-automatic building block forming machine just adopts simple computer program control, can not realize the intelligent management of whole production processes.
Summary of the invention
The purpose of this invention is to provide a kind of flyash brick former numerical control method, it has solved decode procedure complexity in the prior art, unstable product quality, ineffective problem, with the outer operation change control program of machine, finish the digitlization decoding, realize the program behavior Digital Control of equipment, reduced administrative expenses, improved operating efficiency and control accuracy, guarantee the quality of product, the scope of application is more extensive.
The object of the present invention is achieved like this: the technical essential of this method is: utilization CAD/CAM interactive adaptive control software is formed digital control system to the automated programming that Programmable Logic Controller carries out the Mathematical Modeling exchange, and by the computer operation platform, Programmable Logic Controller, each controls the body construction of object, sensor and control system and control circuit thereof are formed modular unit, reflect the operation that the current information state will be carried out by interactive interface, the status bar guiding operation, and prompting current state and present position, digital control system is connected transmission with each modular unit by the signal of telecommunication, the corresponding compensation controlled quentity controlled variable of each modular unit of tuningout.
Described auto-adaptive controling software is made up of systems soft ware and application software.
Described computer operation platform adopts industrial controlled machine or touch-screen.
Described Programmable Logic Controller is made up of central processor CPU, memory, register, programmable device, A/D, D/A conversion chip, I/O version interface, A/D, D/A version interface.
The described object of respectively controlling is by the control of open and close ring multiplex control system, and open-loop control system control object has: the process combination equipment that has the holding vessel of the gate and valve of dynamic metering device and automatic control flow, the conveyer that gathers materials, helical stir batcher, elevator, vapour source, helical stir unloader, batcher, brick unwheeling; Closed-loop control system control object has: material activates integrating apparatus, efficient make-up machine, conveyer and automatic parallel moving type racking machine, and the above-mentioned object of respectively controlling is made up of self frame for movement, control structure, sensor respectively.
Described control structure is by the change-over switch of holding vessel, transformer, breaker, contactor, electrothermal relay and micromachine, conveyer gathers materials, the helical stir batcher, elevator, the breaker of batcher, contactor, electrothermal relay and motor, material activates the variable-frequency motor of integrating apparatus, contactor, breaker, the steam flow control valve, pressure-relief valve, the LED alarm lamp, the hydraulic system of efficient make-up machine, comprise variable pump, the servo-hydraulic motor, the 3-position 4-way electric hydraulic control valve, pilot operated compound relief valve, the 2/2-way magnetic valve, individual event valve, the discharge valve of sequence valve and material distributing machine, the electronic roller of conveyer, the hydraulic system of driven roller and automatic parallel moving type racking machine is formed.
Described sensor is by the dynamic flow of holding vessel metering instrument, and material activates temperature sensor in the integrating apparatus, be installed in condenser type level detector in online at random moisture detector, pressure sensor and the material level case of material outlet, the area sensor of pressure sensor, flow sensor, grating displacement transducer, conveyer and the automatic parallel moving type racking machine of make-up machine is formed.
Described control circuit is the RS-232 bus, in use only with 9 lines, can realize sending data, accepts data, carrier wave detects, alarm, and high level is effective, functions such as request transmission or clear to send.The connection that this bus is effective and reasonable with frame for movement, body construction, the control structure of system, and link with A/D, the D/A version interface of Programmable Logic Controller keeps the digital-to-analog conversion of the signal of telecommunication and transmits.The output of Programmable Logic Controller connects with microcomputer platform again and shows current data, and realizes effectively operation at microcomputer platform.
Because the present invention has adopted CAD/CAM interactive adaptive control software, utilize the differential equation and transfer function to set up Mathematical Modeling accurately, and additional product molding towards geometrical model, not only satisfy the needs of producing, also effectively solved problems such as production technology, control method, cost accounting, intelligent management; Set up a plurality of independently control modules, form LOCAL FEEDBACK, reduced the hysteresis quality that signal compares, detects, transmits, strengthened the sensitivity of system, deviation system accurately moves according to workload and the curve set fast; Adopted open and close ring multiplex control system, both improved the speed of service, reduced cost, system's antijamming capability is strengthened, control accuracy improves; In the control module of make-up machine, be provided with the analog signal module of hydraulic control system, can realize the electrodeless frequency conversion of operating rate 8-24 second/mould, improved the flexibility of former control system greatly, satisfy different needs.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the concrete structure schematic diagram of a kind of former of the present invention.
Fig. 2 is a kind of electrical schematic diagram of former numerical control method of the present invention.
The specific embodiment
Describe the concrete structure of the present invention and the course of work in detail according to Fig. 1-2.This method utilization CAD/CAM interactive adaptive control software carries out the Mathematical Modeling exchange to Programmable Logic Controller automated programming, form digital control system, and by the computer operation platform, Programmable Logic Controller, each is controlled body construction, sensor and control system and the control circuit thereof of object and forms modular unit, reflect the operation that the current information state will be carried out by interactive interface, the status bar guiding operation, and prompting current state and present position, digital control system is connected transmission with each modular unit by the signal of telecommunication, the corresponding compensation controlled quentity controlled variable of each modular unit of tuningout.
Described auto-adaptive controling software is made up of systems soft ware and application software, comprise intelligence systems such as programming language (VISUALC++, trapezoid figure language), language processor, service routine, have command function, check feedback function, automatic deviation correction function, intelligent management function, can be according to the desired input and output amount of set-point, set up the Mathematical Modeling of control system from employing the differential equation and transfer function, determine shaping machine set towards geometrical model and relevant parameter.Application software has solved production technology automatic interlock, the inspection feedback of production equipment, effective control of computer, the problems such as accurate operation, control method and production cost of executing agency.Digital control system is connected transmission with each control module by the signal of telecommunication, the The optimal compensation controlled quentity controlled variable of each control module of tuningout.
Described computer operation platform promptly can be an industrial controlled machine, also can be touch-screen.Adopt original Windows menu, full Chinese interface, and support icon menu, tool bar, curve map, shortcut comprehensively.The operation that system will carry out by interactive interface reflection current information state.Status bar guiding operation, and prompting current state and present position.
Described Programmable Logic Controller adopts the Programmable Logic Controller FX2N-32MR of MIT's production as master controller, is made up of hardware such as central processor CPU, memory, register, programmable device, A/D, D/A conversion chip, I/O version interface, A/D, D/A version interfaces.Central processing unit comprises WP and bit processor, realizes that respectively the programming languages such as ladder diagram of information Processing and storage and software are converted into the function of machine language, is the core of control system.A/D, D/A conversion chip adopt high-precision AD574 model.After physical quantitys such as the displacement of working site, speed are converted to numeral, analog signal through sensor, handle the input computer by converter, its input signal is all isolated through photoelectricity, to reduce interference volume, strengthens control accuracy.This chip is 12, and sample frequency is 100KHz.
Programmable Logic Controller adopts towards control procedure, its principle be on-the-spot become the analog signal of sending device to send here and enter adjuster after, after input filtering, multi-channel switch and A/D, D/A conversion, be converted to the corresponding digital amount, be stored in the register of programmable controller, the data signal of being imported just can be passed through the adjuster output interface through input filtering and shaping, directly enters register; CPU reads relevant input successively and handles subprogram and interpretative subroutine according to the program requirement of auto-adaptive controling software from the memory of system, simultaneously, read various data from random access memory and auto-adaptive controling software, realizes input processing and computing.If result data does not overflow, can be used as memory cell output and upgrade; If data are overflowed, auto-adaptive controling software recomputates and the handling procedure action, and carries out automatic sound-light alarm.Readjust each subprogram by CPU, the data of output register are after D/A conversion and output holding circuit, and the control signal that converts standard through voltage-to-current to is exported, and is sent to on-the-spot executing agency; When the set-point of setting changed, auto-adaptive controling software carried out the outer automated programming decoding of machine quickly and accurately, realizes different control schemes.
The described object of respectively controlling is controlled by open and close ring multiplex control system, open-loop control system control object has: have process combination equipment such as the holding vessel 1 of the gate and valve of dynamic metering device and automatic control flow, the conveyer 2 that gathers materials, helical stir batcher 3, elevator 4, vapour source 6, helical stir unloader 7, batcher 8, brick unwheeling 11, be characterized in simple in structure, cheap, stability is good.Closed-loop control system control object has: material activates integrating apparatus 5, efficient make-up machine 9, conveyer and automatic parallel moving type racking machine 10, is characterized in the control accuracy height, and antijamming capability is strong, and is applied widely.The above-mentioned object of respectively controlling is made up of self frame for movement, control structure, sensor respectively.
Described frame for movement is respectively to control the object body construction
Described control structure is by change-over switch QF, transformer PA, circuit breaker Q F, contactor KM, electrothermal relay FR and the micromachine M of holding vessel 1, the breaker of the conveyer 2 that gathers materials, helical stir batcher 3, elevator 4, batcher 8, contactor KM, electrothermal relay FR and micromachine M; Material activates variable-frequency motor, contactor KM, circuit breaker Q F, steam flow control valve, pressure-relief valve, the LED alarm lamp of integrating apparatus 5, the hydraulic system of efficient make-up machine 9, the discharge valve that comprises variable pump, servo-hydraulic motor, 3-position 4-way electric hydraulic control valve, pilot operated compound relief valve, 2/2-way magnetic valve, individual event valve, sequence valve and material distributing machine, the compositions such as hydraulic system of the electronic roller of conveyer, driven roller and automatic parallel moving type racking machine 10.
Described sensor is by the dynamic flow metering instrument of holding vessel 1, material activates the temperature sensor in the integrating apparatus 5, be installed in the interior condenser type level detector of online at random moisture detector, pressure sensor and material level case of material outlet, pressure sensor, flow sensor, the grating displacement transducer of efficient make-up machine 9, the area sensor of conveyer and automatic parallel moving type racking machine 10 is formed.
Temperature sensor in the sensor adopts RTD PT100 type temperature sensor.Detection signal quickly and accurately; The online at random moisture detector that is adopted is a MMR101 type high temperature humidity transmitter, have relative humidity sensor and two current loops are used for on-line measurement, operating temperature can reach 150 degree, and relative humidity is 0-100%, and compatible platinum resistance thermometer TRD temperature sensor; The pressure sensor that is adopted is a DP5 new range sensor, uses single contact to connect, and the reaction time is 1ms, has reduced the hysteresis quality of control system; The grating displacement transducer that is adopted is measured straight-line displacement for long raster pattern.Constitute by light source, condenser, key light grid, indication grating, light-sensitive element, utilize stroke and Moire fringe phenomenon between the key light grid to change the analog quantity of mechanical displacement into digit pulse, carry out accurate measurement, its scope 30-100mm, spacing 0.1-10 μ m guarantees the precision of control system with this; The area sensor that is adopted is the SF4-AH series sensor, utilizes intersection optical axis scanning system, detects the material zone location accurately, and is furnished with the ELCA function, has reduced the interference of extraneous light frequency, has strengthened accuracy.
Described control circuit is the RS-232 bus, in use only with 9 lines, can realize sending data, accepts data, carrier wave detects, alarm, and high level is effective, functions such as request transmission or clear to send.The connection that this bus is effective and reasonable with frame for movement, body construction, the control structure of system, and link with A/D, the D/A version interface of Programmable Logic Controller keeps the digital-to-analog conversion of the signal of telecommunication and transmits.The output of Programmable Logic Controller connects with the computer operation platform again and shows current data, and realizes effectively operation at the computer operation platform.
Described CAD/CAM interactive adaptive control software, utilize the differential equation and transfer function to set up Mathematical Modeling accurately, according to temperature, humidity, pressure mass change rule to flyash and alkali-activator, set up flyash excite the sine curve of activation and product molding towards geometrical model, Programmable Logic Controller can be according to setting automatic computing, detection, correction, instruct the work of unit, and do the The optimal compensation motion according to error.
Described Programmable Logic Controller has been owing to adopted high-precision numeral, analog-converted to connect version, and has photoelectric isolation technology, improved the precision of control, reduced the invasion of interference volume.
The batching, batch mixing, materialization of utilizing the present invention can realize preparing flyash brick activate, integrate moulding, the Digital Control of technology such as carry, put on the shelf.The computer operation platform is prefabricated and working condition display unit as parameter, the quantity ratio of producing brick output in the unit interval of shaping machine set is set at set-point, auto-adaptive controling software is according to the speed of make-up machine depanning, Mathematical Modeling according to the differential equation and transfer function budget is set the best method of operation, respectively holding vessel 1, material activation integrating apparatus 5, helical stir unloader 7, make-up machine 9 are sent control signal, after holding vessel 1 is received the start signal of programmable controller, open gate and valve, material flows out automatically.The emphasis of its control is the set-point of setting according to auto-adaptive controling software, adjusts the proportioning of each material, adjusts the outlet of valve according to the size of start signal amount.The gate and valve that is adopted has dynamic metering device, can detect the actual quantity of mass flow, and converts this to signal of telecommunication, by the D/A conversion, is returned to Programmable Logic Controller, the signal of telecommunication is conveyed to again the controlling organization of holding vessel 1 after computing, correction.Gather materials conveyer 2, elevator 4, vapour source 6 all has opening device, receives the work that opens automatically, stops work behind the front-end control signal.The control emphasis that material activates integrating apparatus 5 is the moisture of material in the machine, and according to temperature, humidity, the pressure mass change rule to flyash and alkali-activator, promptly temperature, humidity, pressure are high more, excite the time of activation short more; Temperature, humidity, pressure are low more, excite the long more parameters relationship location of soak time, set up flyash to excite the sine curve of activation, make the revolution of temperature, humidity, pressure, flow, flow velocity and frequency control motor constant relatively.Vapour source 6 is imported superheated steam after receiving and opening control signal in activating integrating apparatus, form temperature, humidity and the pressure of setting in machine.Measurement mechanism on the sensor is gathered signal, and makes the signal of telecommunication output to Programmable Logic Controller by comparing element after amplifying, and forms the LOCAL FEEDBACK system.Control system compares the molding curve of material under temperature, humidity, pressure effect according to the feedback signal of receiving, and draws the The optimal compensation controlled quentity controlled variable by computing, and signal is returned, and instructs the compensation running of vapour source 6, the pressure flow of tuningout superheated steam.When the moisture of material in the machine exceeds the rated range of adaptable software budget, alarm activation, pressure-relief valve is opened, and after control system is rerun, begins next working cycles.The operation principle of make-up machine 9 is accurate motions of control system control mechanical part, sensor testing error, and with this with the form of the signal of telecommunication after conversion is amplified, the input Programmable Logic Controller, by computing, detection, pressure, speed, the distance of feedback control system control mechanical part, the The optimal compensation motion of tuningout make-up machine.
During use, with hand after automatic switch pulls the X2 position, the contact switch auto-closing, the function of motion starts automatically.After holding vessel 1 is received the open amount signal, the contactor closure, transformer is charged, and motor M starts, and opens gate and valve according to given proportioning; The dynamic flow detector is worked simultaneously, and detected error is passed to Programmable Logic Controller with the form of the signal of telecommunication, and when the error over range, the HL3-7 alarm lamp starts.Material drops on the conveyer 2 that gathers materials automatically, enters material activation integrating apparatus 5 through helical stir batcher 3 and elevator 4.The control contactor that gather materials conveyer 2, stirs batcher 3, elevator 4 is respectively SB10, SB12, SB14, is characterized in simple in structure, and is highly sensitive, reaction speed is fast, cost is low, belongs to typical open-loop control system.
It is independent control modules that material activates integrating apparatus 5, links to each other with vapour source 6 input units by cable, and whole input unit links to each other with programmable controller again.Activate and be provided with height material level connection warning feedback device, temperature sensing device, pressure sensor device and humidity sensing device in the integrating apparatus, the material forming sine curve control vapour source 6 that Programmable Logic Controller calculates according to auto-adaptive controling software, the superheated steam of input water content 100%, and form temperature, humidity, the pressure of setting.When the control signal of the temperature in the machine, humidity, pressure was overflowed setting value, voltage signal increased, and the control valve of vapour source 5 dwindles, progressively near set-point; The signal of the empty full degree of material level by the calculating of programmable controller after the control module of notice front end material holding vessel 1, gate and valve just strengthens automatically or dwindles, but this variation is not the demand that just satisfies rear end equipment at once, but the quantity ratio of the unit interval of calculating according to auto-adaptive controling software, incremental is positioned on the constant position, as long as having a bit, the output quantity of activation machine changes, just the automatic tracking lock of headend equipment.
Activate the material that flows out in the integrating apparatus 5 from material and enter helical stir unloader 7, stir unloader 7 and be provided with variable-frequency governor,, adjust the speed of mainshaft, the control mass flow according to the make-up machine depanning speed that auto-adaptive controling software is set.
Make-up machine 9 is a closed-loop control system, is independent intelligent control unit, adopts three-phase 380V power supply, and control loop is provided with the control module of analog signal respectively by AC220V, DC24V power supply, realizes the electrodeless variable of pressing speed in 8-24 scope second.After cloth truck the past, the termination material finished, automatically advance by the operating rate of setting material is sent to, Template Location simultaneously, the KA6 coil is charged, contact closure, motor is started working, and connects oil circuit, and following hydraulic cylinder starts, the mould platform rises, displacement transducer transmits the feedback command location, and the KA6 contact is opened, and mould platform hydraulic pressure stops; The while stone, the KA3 coil is charged, contact closure, material distributing machine translation hydraulic starting boosting, displacement transducer electro-optical feedback location, hydraulic pressure stops, and starts the butterfly valve discharging; Low-frequency vibration starts, and the discharging butterfly valve cuts out, KA4 electricity astragal, contact closure, the material distributing machine playback, hydraulic system stops, change dither (reading the clock), the KA2 coil is charged, contact closure, machine operation, last hydraulic cylinder starts, the die head pressurization, vibration stops, and pressurization stops, KA2, KA5 contact closure, die head boosting and Mo Tai descend and start simultaneously, die head location (up hydraulic pressure stops), KA1 opens, die head playback (hydraulic pressure opens, stops), the KA5 coil is charged, electric motor starting, the descending playback of mould platform, following hydraulic cylinder stops, finish the circulation of program behavior, omnidistance time 8-24 second.9 times up putting in place of cylinder of make-up machine connect material the descending extrusion forming of upper cylinder half.Use displacement sensor displacement, flow sensor and pressure sensor detect the speed of service, reaching the running parameter of setting, can monitor operating rate and compacting quantity and each signal condition, fault alarm and reason by D/A control ratio valve at the computer operation platform of front end.The frequency of depanning and speed are adjusted arbitrarily as required, but the shortest time be 8 seconds/mould, being lower than 8 seconds/mould is the limit, not fill order.The control system of make-up machine 9 has adopted multiloop LOCAL FEEDBACK control system, and each measurement, change according to the set-point of auto-adaptive controling software, are calculated adjustment after sending element that signal is amplified processing, export the control signal of The optimal compensation motion.
Conveying device is made up of conveyer and automatic parallel moving type racking machine 10, and after brick template was reached the standard grade, when reaching the assigned address location, area sensor detected and sends signal, and the intelligent control unit of make-up machine 9 is started working; When the brick template that carries full goods after conveyer arrives the parallel-moving type racking machine, hydraulic starting rises, the sensor location, the translation machine starts brick template and enters brick unwheeling; Gripper boosting (starting and stopping) elevating translational machine playback (hydraulic stop); Gripper pushes template (open, stop) template and reaches the standard grade, the location, and the mould platform starts.
As with hand automatic switch move manual position to, connect the crawl operation that circuit also can be realized each function, satisfy the special requirement of system.
Claims (2)
1, a kind of flyash brick former numerical control method, it is characterized in that: utilization CAD/CAM interactive adaptive control software carries out the Mathematical Modeling exchange to Programmable Logic Controller automated programming, form digital control system, and by the computer operation platform, Programmable Logic Controller, each controls the body construction of object, sensor and control system and control circuit thereof are formed modular unit, reflect the operation that the current information state will be carried out by interactive interface, the status bar guiding operation, and prompting current state and present position, digital control system is connected transmission with each modular unit by the signal of telecommunication, the corresponding compensation controlled quentity controlled variable of each modular unit of tuningout.
2, flyash brick former numerical control method according to claim 1, it is characterized in that: described control circuit is the RS-232 bus, in use only with 9 lines, can realize sending data, accept data, carrier wave detects, alarm, high level is effective, functions such as request transmission or clear to send; The connection that this bus is effective and reasonable with frame for movement, body construction, the control structure of system, and link with A/D, the D/A version interface of Programmable Logic Controller keeps the digital-to-analog conversion of the signal of telecommunication and transmits; The output of Programmable Logic Controller connects with microcomputer platform again and shows current data, and realizes effectively operation at microcomputer platform.
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| CNB2004100215334A CN1322966C (en) | 2004-07-22 | 2004-07-22 | Digital control device of flyash brick shaping equipment |
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| CNB2004100215334A CN1322966C (en) | 2004-07-22 | 2004-07-22 | Digital control device of flyash brick shaping equipment |
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| CN1322966C true CN1322966C (en) | 2007-06-27 |
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| CN100415502C (en) * | 2006-10-16 | 2008-09-03 | 许阳 | Special programmable electric governing system fordrypowder press and its control mode |
| CN102354133A (en) * | 2011-07-28 | 2012-02-15 | 福建泉工机械有限公司 | Adjustable vibration disk servo control system applied to brick making machine |
| JP5456073B2 (en) | 2012-01-06 | 2014-03-26 | 三菱重工業株式会社 | Coal deactivation processing equipment |
| CN102799126A (en) * | 2012-08-19 | 2012-11-28 | 青岛亚华制盖有限公司 | Control system of cap washing device |
| JP5971652B2 (en) | 2012-10-09 | 2016-08-17 | 三菱重工業株式会社 | Coal deactivation processing equipment |
| JP5536247B1 (en) | 2013-03-04 | 2014-07-02 | 三菱重工業株式会社 | Coal deactivation processing equipment |
| CN103586968B (en) * | 2013-10-30 | 2017-04-19 | 湖南三一快而居住宅工业有限公司 | Automatic distribution machine and controlling method for automatic distribution machine |
| CN105629912B (en) * | 2014-11-05 | 2017-12-26 | 柳州市智马砖瓦机械有限责任公司 | A kind of full-automatic extrusion excision forming intelligence control system of brick-tile industry |
| CN110077026B (en) * | 2019-03-22 | 2020-04-21 | 中信重工机械股份有限公司 | Intelligent automatic control method for large-scale high-pressure double-roller forming machine |
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| JPH0911216A (en) * | 1995-06-29 | 1997-01-14 | Fujisash Co | Extrusion molding machine |
| US6096373A (en) * | 1989-05-10 | 2000-08-01 | Nachtman; Thomas J. | Sprayable composition and method for forming a foamed outdoor protective cover layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3844938C2 (en) * | 1987-05-22 | 1996-09-19 | Pro Mineral Ges | Calcium sulphate alpha-mono:hydrate mfr. by autoclaving di:hydrate |
| US6096373A (en) * | 1989-05-10 | 2000-08-01 | Nachtman; Thomas J. | Sprayable composition and method for forming a foamed outdoor protective cover layer |
| JPH0911216A (en) * | 1995-06-29 | 1997-01-14 | Fujisash Co | Extrusion molding machine |
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